Home / 81,298.92-121,961.58-25,125.92

Finding the Fourth Proportional to 81,298.92, 121,961.58 and 25,125.92

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Solution

The fourth proportional to 81,298.92, 121,961.58 and 25,125.92 is: 37,692.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,298.92 : 121,961.58 = 25,125.92 : x
  2. Step 2: Convert to fraction form
    81,298.92/121,961.58 = 25,125.92/x
  3. Step 3: Cross multiply
    81,298.92x = 121,961.58 × 25,125.92
  4. Step 4: Simplify right side
    81,298.92x = 3,064,396,902.15
  5. Step 5: Solve for x
    x = 3,064,396,902.15/81,298.92
  6. Step 6: Final answer
    x = 37,692.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.